L773:9781479998777
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- Ingemarsson, Carl,1983-Linköpings universitet,Datorteknik,Tekniska fakulteten (author)
On fixed-point implementation of symmetric matrix inversion
- Article/chapterEnglish2015
Publisher, publication year, extent ...
- Piscataway, NJ, USA :IEEE,2015
- electronicrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:liu-124357
- https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-124357URI
- https://doi.org/10.1109/ECCTD.2015.7300068DOI
Supplementary language notes
- Language:English
- Summary in:English
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- SwePubSwePub
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- In this work we explore the trade-offs between established algorithms for symmetric matrix inversion for fixed-point hardware implementation. Inversion of symmetric positive definite matrices finds applications in many areas, e.g. in MIMO detection and adaptive filtering. We explore computational complexity and show simulation results where numerical properties are analyzed. We show that LDLT decomposition combined with equation system solving are the most promising algorithm for fixed-point hardware implementation. We further show that simply counting the number of operations does not establish a valid comparison between the algorithms as the required word lengths differ significantly.
Subject headings and genre
- TEKNIK OCH TEKNOLOGIER Elektroteknik och elektronik Signalbehandling hsv//swe
- ENGINEERING AND TECHNOLOGY Electrical Engineering, Electronic Engineering, Information Engineering Signal Processing hsv//eng
- matrix inversion
- fixed point arithmetic
- symmetric matrix
Added entries (persons, corporate bodies, meetings, titles ...)
- Gustafsson, Oscar,1973-Linköpings universitet,Datorteknik,Tekniska fakulteten(Swepub:liu)oscgu95 (author)
- Linköpings universitetDatorteknik (creator_code:org_t)
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- In:Proceedings of the European Conference on Circuit Theory and Design (ECCTD)Piscataway, NJ, USA : IEEE, s. 440-4439781479998777
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